NCT05867433

Brief Summary

Strong Teens for Healthy Schools (STHS) is a school-based, civic engagement program that empowers middle school students to improve their physical activity and healthy eating behaviors, improve their cardiovascular disease outcomes, and create positive change in their school health environments.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
500

participants targeted

Target at P75+ for not_applicable cardiovascular-diseases

Timeline
10mo left

Started Sep 2023

Typical duration for not_applicable cardiovascular-diseases

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Progress77%
Sep 2023Apr 2027

First Submitted

Initial submission to the registry

April 11, 2023

Completed
1 month until next milestone

First Posted

Study publicly available on registry

May 22, 2023

Completed
4 months until next milestone

Study Start

First participant enrolled

September 27, 2023

Completed
3.6 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

April 15, 2027

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

April 15, 2027

Last Updated

September 12, 2025

Status Verified

September 1, 2025

Enrollment Period

3.6 years

First QC Date

April 11, 2023

Last Update Submit

September 5, 2025

Conditions

Outcome Measures

Primary Outcomes (3)

  • Presence or absence of metabolic syndrome (MetS)

    MetS is present after identifying abdominal obesity plus at least two of the four other MetS Risk factors: high blood pressure, high blood sugar, low HDL cholesterol, and high triglyceride levels. MetS = (abdominal obesity) + (2 of 4 other MetS Risk factors) Measures to determine MetS risk factors: 1. Abdominal obesity: waist circumference \>90th percentile for child's sex and age 2. High blood pressure: systolic blood pressure ≥130 mm Hg or diastolic blood pressure ≥90 mmHg) 3. High blood glucose: blood glucose ≥5.6 mmol/L or known diabetes 4. Low HDL cholesterol: HDL cholesterol \<1.03 mmol/L 5. High triglyceride level: Triglyceride level ≥ 1.7mmol/L

    Baseline, 9 months (immediate post intervention), 4 months and 12 months post intervention

  • Change in the number of MetS risk factors

    Change in the number of MetS risk factors = (new # of MetS risk factors) - (original # of MetS risk factors) Measures to determine MetS risk factors: 1. Abdominal obesity: waist circumference \>90th percentile for child's sex and age 2. High blood pressure: systolic blood pressure ≥130 mm Hg or diastolic blood pressure ≥90 mmHg) 3. High blood glucose: blood glucose ≥5.6 mmol/L or known diabetes 4. Low HDL cholesterol: HDL cholesterol \<1.03 mmol/L 5. High triglyceride level: Triglyceride level ≥ 1.7mmol/L

    Baseline, 9 months (immediate post intervention), 4 months and 12 months post intervention

  • Positive Youth Development score

    Positive youth development will be measured using a 5 C's Model of Positive Youth Development Scale-Short Form (PYD-SF): A 34-item scale that assesses the strength of psychological, behavioral, and social development in youth. The five dimensions measured are: 1. Competence (sense of proficiency) 2. Confidence (self-worth, self-efficacy) 3. Character (adherence to societal and cultural rules) 4. Connection (bonds with people and institutions) 5. Caring (sympathy and empathy towards others)

    Baseline, 9 months (immediate post intervention), 4 months and 12 months post intervention

Secondary Outcomes (22)

  • Blood pressure level

    Baseline, 9 months (immediate post intervention), 4 months and 12 months post intervention

  • Concentration of blood glucose

    Baseline, 9 months (immediate post intervention), 4 months and 12 months post intervention

  • Waist circumference

    Baseline, 9 months (immediate post intervention), 4 months and 12 months post intervention

  • Concentration of HDL cholesterol

    Baseline, 9 months (immediate post intervention), 4 months and 12 months post intervention

  • Concentration of serum triglycerides

    Baseline, 9 months (immediate post intervention), 4 months and 12 months post intervention

  • +17 more secondary outcomes

Study Arms (2)

STHS Intervention

EXPERIMENTAL

Participants in this group (10 schools) will participate in the STHS program.

Behavioral: STHS Intervention

Usual Care

OTHER

Participants in this group (10 schools) will continue with usual care, as they will not be asked to add or remove any of their current, physical activity, healthy eating, or positive youth development programming.

Behavioral: Usual Care

Interventions

STHS program The intervention group (10 schools) will participate in the STHS program. During the fall semester (September to December), the intervention group will receive 24 thirty-minute modules (or twelve 1-hour modules) that provide education on civic engagement, healthy eating, and physical activity. During the spring semester (February to May), the intervention group will receive 24 thirty-minute modules (or twelve 1-hour modules) that focus on implementing the school health environmental change project and receive support for maintaining individual-level healthy eating and physical activity behaviors.

STHS Intervention
Usual CareBEHAVIORAL

No STHS program The usual care group will be offered the same activities as the intervention group after the conclusion of the research study.

Usual Care

Eligibility Criteria

Age8 Years+
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64), Older Adult (65+)

You may qualify if:

  • \> 50 6th and 7th grade students
  • \> 40% economically disadvantaged students
  • \> 40% Black and Hispanic students

You may not qualify if:

  • th or 7th grade student
  • Attend a Title 1 middle school that is participating in the STHS intervention
  • Read and understand English
  • Participation in a weight loss program in the past 3 months
  • Presence of a condition that prevents participation in physical activity

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Texas A&M AgriLife Dallas Center

Dallas, Texas, 75252, United States

RECRUITING

Related Publications (1)

  • MacMillan Uribe AL, George A, McNeely A, Xin L, Largacha Cevallos E, Rethorst C, Seguin Fowler RA, Szeszulski J. Strong Teens for Healthy Schools: Protocol for evaluating a youth nutrition, physical activity, and civic engagement protocol. Front Public Health. 2025 Sep 17;13:1654678. doi: 10.3389/fpubh.2025.1654678. eCollection 2025.

MeSH Terms

Conditions

Cardiovascular DiseasesMotor Activity

Condition Hierarchy (Ancestors)

Behavior

Central Study Contacts

Jacob S Szeszulski, PhD

CONTACT

Alexandra L MacMillan Uribe, PhD

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: School-based cluster randomized controlled trial
Sponsor Type
OTHER
Responsible Party
SPONSOR

Study Record Dates

First Submitted

April 11, 2023

First Posted

May 22, 2023

Study Start

September 27, 2023

Primary Completion (Estimated)

April 15, 2027

Study Completion (Estimated)

April 15, 2027

Last Updated

September 12, 2025

Record last verified: 2025-09

Locations